A476 road

Tumble (Welsh: Tymbl), is a village situated south of Cross Hands near the towns of Carmarthen and Llanelli in Carmarthenshire, Wales. Tumble, along with Cross Hands is part of the community of Llannon. The population, including Drefach was 4,302.

Mynydd Mawr Hospital (Welsh: Ysbyty Mynydd Mawr) was a community hospital at Upper Tumble, Llanelli, Wales. It was managed by the Hywel Dda University Health Board.

Gweunydd Glan-y-glasnant is a Site of Special Scientific Interest (SSSI) in Carmarthenshire, Wales, designated in 1993 for its botanical features.

Cefneithin () is a village and community in Carmarthenshire, Wales, in the Carmarthenshire coalfield area. It lies just off the A48 road, 7 miles north west of Ammanford and 9 miles north of Llanelli. Its nearby community villages include Cross Hands, Drefach, Cwmmawr, Foelgastell and Gorslas. The Gwendraeth Fawr river flows nearby and its source is at Llyn Llech Owain, just north of the village. Cefneithin has a chapel (Tabernacl), a village hall (Y Neuadd), a primary school, and a secondary school. The latter, Ysgol Maes y Gwendraeth, was re-opened in 2016 after an extensive renovation and an £18.4m investment; it has 1,000 pupils, of which 157 in sixth form, and resources for children with additional learning needs. Prior to 2016 when the school was called Ysgol Gyfun Maes Yr Yrfa, some of its famous pupils include Nigel Owens (international rugby referee), Jonathan Edwards (MP for Carmarthen East and Dinefwr), TV presenter Alex Jones and British and Irish Lion rugby player, Dwayne Peel. The local rugby club, Cefneithin RFC, was founded in 1922. Blaenhirwaun Colliery was situated just outside Cefneithin and was near the extremity of the coalfield. It produced high grade anthracite with an output of about 350 tons per day. 360 people were employed below ground and 80 on the surface. It was served by two vertical shafts sunk to the Green Vein. The No.1 shaft was 10 feet in diameter and 155 yards deep and was the upcast. It was equipped with a Walker Paddle fan which produced about 55,000 cubic feet of air per minute at a water gauge of 3.125 inches. The No. 2 shaft was 13 feet in diameter and 212 yards deep and was the downcast and winding shaft for men and materials.The former Colliery has been regenerated to become the Mynydd Mawr Woodland Park - a mix of broadleaved woodland and grassland which is home to a diverse collection of wildlife. The area includes footpaths, picnic facilities, information points and a track for mountain bikers and horseriders.The National Cycle Network passes by Cefneithin RFC's playing field, "Cae Carwyn James," and cyclists can use this former railway line to reach the seaside locations of Llanelli and Burry Port.

Cwmmawr for Tumble railway station, Cwm Mawr railway station or Cwmmawr railway station was opened in 1913 to timetabled passenger services. It continued to serve the inhabitants of the Cwmmawr area and hinterland between 1913 and 1953; it was one of several basic stations opened on the Burry Port and Gwendraeth Valley Railway in Carmarthenshire, Wales.

Cross Hands is a village in Carmarthenshire, Wales, approximately 12 miles (19 kilometres) from Carmarthen. Cross Hands is notable for its Public Hall, erected in 1920 and designed by an unknown Italian designer in the classic Art Deco Style. Fully restored, the Public Hall has a fully functioning stage and cinema screen and is protected as a Grade II* listed building. During the 1960’s and 1970’s the village was a useful halfway stop for motorists from South East Wales driving to/from Pembrokeshire with the local chip shop adjacent to the village crossroads being a very popular facility. The continuous built up area which includes the villages of Cross Hands, Gorslas, Cefneithin and Pen-y-groes had a population of 5,717 in 2011.Cross Hands is a growing residential and employment area and includes the established Cross Hands Food Park to the south west of the A48. A new business park, the Cross Hands Business Park, is being developed to the northeast of the A48 which the local authority hopes will create 1,000 jobs.Gweunydd Glan-y-glasnant, a Site of Special Scientific Interest notable for its species-rich neutral grassland, is 3⁄4 mile (1.2 kilometres) southwest of Cross Hands.

Ysgol y Gwendraeth was a secondary comprehensive school for pupils aged 11 to 18 in the Gwendraeth Valley, Carmarthenshire, Wales. Situated in the village of Drefach, it had 312 pupils in 2012. The School was effectively closed in 2013 when it was merged with Ysgol Maes Yr Yrfa and teaching at the Ysgol y Gwendraeth site in Drefach ceased. This merger eventually led to Ysgol Maes Y Gwendraeth. The school was originally a Grammar School known as Gwendraeth Grammar School, or Gwendraeth Valley Grammar School. The original school building was built in 1927.The school promoted the Welsh language, Welsh history, and Welsh culture. Some subjects were available to be taught in the Welsh language if requested; otherwise the lessons were taught in the English language only. There was also a Sixth Form College and the school additionally housed the Garreglwyd Autistic Unit and Annex. The majority of the pupils and staff could speak Welsh. Many staff members lived in or near the valley and were thus naturally immersed in all aspects of the life of the community. Ysgol Y Gwendraeth earned the 2001-2002 Schools Curriculum Award. The feeder primary schools were Category A schools, where Welsh is the language spoken and taught up to the age of seven and where Welsh culture is actively promoted with the assistance of Menter Cwm Gwendraeth, which promotes Welsh and Welsh culture and history.

Ysgol Maes Y Gwendraeth is a bilingual secondary school for pupils aged between 11 and 18 years, situated in Cefneithin, Carmarthenshire, Wales. The school was opened following the amalgamation of Ysgol Maes yr Yrfa and Ysgol y Gwendraeth secondary schools in 2013. As of 2023, there are 1107 pupils on roll at the school.Welsh is the official language of the school on a daily basis and is the administrative and social medium of communication. The school is categorized linguistically by Welsh Government as a category 2A school. It means that at least 80% of subjects apart from English and Welsh are taught only through the medium of Welsh to all pupils. However, one or two subjects are taught to some pupils in English or in both languages. The school states that all subjects are taught through the medium of Welsh, excluding English and Science (which is taught through the pupils’ chosen language from Year 8 onwards).

Foelgastell () is a village and community in the county of Carmarthenshire, west Wales. The village has seen much new building of comparatively expensive housing over the past two decades and is within the electoral ward of Gorslas to the west of the social housing area of Cefneithin.

Llannon is a small village, community and electoral ward in the county of Carmarthenshire, Wales. It is located on the A476 road 11 mi (18 km) south east of the county town, Carmarthen, between Tumble and Swiss Valley. The community of Llannon contains Llannon village, Tumble and Cross Hands. The community is bordered by the communities of: Gorslas; Llandybie; Llanedi; Llangennech; Llanelli Rural; and Pontyberem, all being in Carmarthenshire. The community had a population of 5,270 as of the 2011 census.

Caeau Rhyd-y-gwiail is an area of grassland that is a Site of Special Scientific Interest in Carmarthen & Dinefwr, Wales.

Caeau Ffos Fach is a Site of Special Scientific Interest in Carmarthen & Dinefwr, Wales. Part of this SSSI is a nature reserve owned by the charity Butterfly Conservation primarily because of the population of the rare and legally protected butterfly species the marsh fritillary.