Social　and　environmental　changes　had　great　spatiotemporal　variability　in　the　Maya　Lowlands　during　the　Classic　and　Postclassic　Periods,　and　stalagmites　promise　high-resolution　paleoclimate　data　that　can　refine　our　understanding　of　this　complex　time.　Unfortunately,　stalagmites　in　this　region　are　often　difficult　to　date　by　U-Th　methods　because　of　low　initial　uranium　concentrations.　Other　dating　techniques　can　be　used　on　such　stalagmites,　and　we　present　here　an　age-depth　model　for　BZBT1,　a　low-uranium　stalagmite　sampled　from　Box　Tunich　cave　in　the　Belize　River　Valley.　This　age-depth　model　dates　the　growth　of　BZBT1　to　between　400　and　1610　yr　BP　(340-1550　CE)　by　combining　evidence　from　U-Th　results,　radiocarbon　dating　of　both　stalagmite　CaCO3　and　trapped　organic　material,　and　Pb-210　dating.　The　resulting　stable　isotope　record　from　BZBT1　reveals　paleoclimate　changes　that　affected　local　Maya　populations　during　the　Classic　and　early　Postclassic　Periods.　This　record　is　further　refined　by　isotopically　tuning　the　BZBT1　data　with　two　other　regional　stalagmite　records.　Our　work　offers　additional　paleoclimate　insight　into　the　relationship　between　the　Maya　and　their　environment　from　a　stalagmite　that　would　typically　be　disregarded　for　research　purposes.　Continued　research　into　alternative　dating　techniques　for　speleothems　can　enable　additional　scientific　discovery　while　promoting　speleothem　conservation.